CN210997959U

CN210997959U - Finishing system for inner and outer surfaces of cylinder body and cylinder cover of engine

Info

Publication number: CN210997959U
Application number: CN201921571595.0U
Authority: CN
Inventors: 张志环; 石海波; 付强; 肖园; 王建超; 高泽; 尹伯
Original assignee: Langfang North Tianyu Electromechanical Technology Co ltd
Current assignee: Langfang North Tianyu Electromechanical Technology Co ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-07-14
Anticipated expiration: 2029-09-20

Abstract

The application provides an internal and external surface finishing system for an engine cylinder body and a cylinder cover, which comprises a positioning tool arranged in a working area, wherein the positioning tool comprises a rack and a workbench arranged on the rack, and a pressing mechanism and a jacking mechanism are arranged on the workbench; the pressing mechanism comprises a pressing cylinder and a pressing head; the jacking mechanism comprises a jacking cylinder and a jacking head; the positioning tool further comprises a slewing mechanism, and the slewing mechanism comprises a slewing motor, a driving gear and a slewing support; the rotary motor is arranged below the rack, an output shaft of the rotary motor is connected to the driving gear, the driving gear is meshed with the rotary support, and the workbench is fixed above the rotary support. The beneficial effect of this application is: the jacking mechanism lifts the workpiece to a proper working height, and then the pressing head presses against the top end of the workpiece to fix the workpiece, so that the workpiece is prevented from side turning and moving in the machining process; the rotary motor drives the rotary support to rotate so as to realize the rotation of the workbench and the workpiece, and the processing of different parts of the workpiece is facilitated.

Description

Finishing system for inner and outer surfaces of cylinder body and cylinder cover of engine

Technical Field

The disclosure relates to the technical field of engine production, in particular to an internal and external surface finishing system for an engine cylinder body and a cylinder cover.

Background

At present, engine cylinder covers and cylinder castings are generally ground by a pass-type plane grinding machine in a cleaning section, the pass-type plane grinding machine can only process surface defects of castings with plane characteristics, and the existing production process can only adopt manual finishing for complex casting surfaces and casting internal defects.

Because most of castings have irregular surfaces and more internal characteristics, the difficulty of realizing online cleaning of the castings is too high, and the following problems mainly exist:

1. the labor intensity of manual finishing cleaning is high, the dust generated by cleaning seriously pollutes the factory environment, and meanwhile, the dust causes serious damage to workers;

2. the manual finishing and cleaning process is backward and is not suitable for the production requirements of modern enterprises;

3. the manual finishing can not realize the online cleaning of the castings, and the online mechanical transportation of the castings is limited;

4. the manual finishing cleaning characteristics are easy to omit, the cleaning effect is greatly influenced by personnel factors, and the cylinder body is easy to damage by manual hammer striking;

5. in order to reduce the risk of cleaning missing in precision finishing, most casting enterprises adopt single-station cleaning, and all defect characteristics are cleaned by one worker, so that the on-site workpiece placement is disordered;

6. a large amount of personnel are required to be invested in the casting cleaning process for manual finishing, and the production cost is high.

Disclosure of Invention

The application aims to solve the problems and provides an internal and external surface finishing system for an engine cylinder block and a cylinder cover.

In a first aspect, the application provides an internal and external surface finishing system for an engine cylinder body and a cylinder cover, which comprises a positioning tool arranged in a working area, wherein the positioning tool comprises a rack and a workbench arranged on the rack, and a jacking mechanism and a pressing mechanism are arranged on the workbench; the jacking mechanism comprises a jacking cylinder and a jacking head connected to the jacking cylinder, and the jacking head abuts against the bottom surface of a workpiece to enable the workpiece to be positioned above the workbench; the pressing mechanism comprises a pressing cylinder and a pressing head connected to the pressing cylinder, and the pressing head abuts against the top end of the workpiece; the piston of the pressing cylinder stretches along with the movement of the workpiece; the positioning tool further comprises a slewing mechanism, and the slewing mechanism comprises a slewing motor, a driving gear and a slewing support; the rotary motor is arranged below the rack, an output shaft of the rotary motor extends to the upper portion of the rack and then is connected to the driving gear, the driving gear is meshed with the rotary support and is connected with the rotary support, and the workbench is fixed above the rotary support.

According to the technical scheme that this application embodiment provided, still including processing robot and cutter frock in the workspace, processing robot is used for right work piece on the location frock is processed, the cutter of different models is equipped with on the cutter frock, the assembly of processing robot the cutter carries out processing operation.

According to the technical scheme provided by the embodiment of the application, the processing robot comprises: the base, be equipped with the robot on the base, the tip of robot is equipped with the processing subassembly, the processing subassembly includes the mounting panel, the mounting panel passes through flange to be fixed the tip of robot, be fixed with servo motor on the mounting panel, servo motor's output shaft has mechanical main shaft, cutter detachably connects mechanical main shaft keeps away from servo motor's tip.

According to the technical scheme provided by the embodiment of the application, the pair of the pressing air cylinders is arranged; the workbench is provided with a first slide rail corresponding to the pressing cylinder, the first slide rail is provided with a pair of slidable connecting assemblies, and the pressing cylinder is fixed on the pair of connecting assemblies respectively.

According to the technical scheme that this application embodiment provided, climbing mechanism includes at least a pair of the jacking cylinder, every the piston connection of jacking cylinder has the shaft coupling, be connected with on the shaft coupling the jacking head.

According to the technical scheme provided by the embodiment of the application, the surface of the rack corresponds to the two sides of the rotary support are provided with a pair of positioning sleeves, the workbench is provided with a positioning cylinder, a piston corresponding to the positioning cylinder on the workbench is provided with a first through hole, the lower part of the workbench corresponds to the first through hole, the first through hole is provided with a positioning rod which can be inserted into the positioning sleeve, and the piston of the positioning cylinder penetrates through the first through hole and then is connected onto the positioning rod.

According to the technical scheme provided by the embodiment of the application, the mechanical spindle is provided with the infrared sensor for detecting the installation of the cutter.

The invention has the beneficial effects that: the application provides an internal and external surface finishing system for an engine cylinder body and a cylinder cover, which comprises a positioning tool arranged in a working area, wherein the positioning tool comprises a rack and a workbench arranged on the rack, and the workbench is provided with a jacking mechanism and a pressing mechanism; the jacking mechanism comprises a jacking cylinder and a jacking head connected to the jacking cylinder, and the jacking head abuts against the bottom surface of a workpiece to enable the workpiece to be positioned above the workbench; the pressing mechanism comprises a pressing cylinder and a pressing head connected to the pressing cylinder, and the pressing head abuts against the top end of the workpiece; the piston of the pressing cylinder stretches along with the movement of the workpiece; the positioning tool further comprises a slewing mechanism, and the slewing mechanism comprises a slewing motor, a driving gear and a slewing support; the rotary motor is arranged below the rack, an output shaft of the rotary motor extends to the upper portion of the rack and then is connected to the driving gear, the driving gear is meshed with the rotary support and is connected with the rotary support, and the workbench is fixed above the rotary support.

The jacking mechanism lifts the workpiece to a proper working height, and presses a pressing head of the pressing mechanism against the top end of the workpiece to fix the workpiece, so that the workpiece is prevented from side turning and moving in the machining process, and the machining precision is ensured; in order to facilitate processing of different angles of the workpiece, the rotary motor drives the rotary support to rotate so as to rotate the workbench and the workpiece on the workbench, and processing of different parts of the workpiece is facilitated.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of the present application;

FIG. 2 is a schematic structural view of a first embodiment of the present application when a workpiece is not secured;

FIG. 3 is a schematic view of a first embodiment of the present application showing a workpiece held thereon;

FIG. 4 is a schematic top view of a second embodiment of the present application;

FIG. 5 is a schematic structural diagram of a processing robot according to a second embodiment of the present application;

FIG. 6 is an enlarged schematic view of the structure A in FIG. 5;

the text labels in the figures are represented as: 100. positioning a tool; 110. a frame; 120. a work table; 130. a jacking mechanism; 131. jacking a cylinder; 132. jacking a head; 140. a hold-down mechanism; 141. a pressing cylinder; 142. a compression head; 150. a swing mechanism; 151. a rotary motor; 152. a driving gear; 153. a rotary support; 161. a positioning sleeve; 162. positioning the air cylinder; 163. positioning a rod; 200. a workpiece; 300. a processing robot; 310. a base; 320. a robot body; 330. processing the assembly; 331. mounting a plate; 332. a connecting flange; 333. a servo motor; 334. a mechanical spindle; 400. tool tooling; 410. and (4) a cutter.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings, and the description of the present section is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention in any way.

As shown in fig. 1, fig. 2 and fig. 3, the schematic diagram of a first embodiment of the present application includes a positioning tool 100 disposed in a work area, where the positioning tool 100 includes a frame 110 and a table 120 disposed on the frame 110, and a jacking mechanism 130 and a pressing mechanism 140 are disposed on the table 120. In this embodiment, the workpiece 200 is a cylinder block or a cylinder head of an engine, and in other embodiments, the system may also be used for machining other large castings, such as gears, large machine housings, large connecting members, and other workpieces 200.

The jacking mechanism 130 comprises a jacking cylinder 131 and a jacking head 132 connected to the jacking cylinder 131, and the jacking head 132 abuts against the bottom surface of the workpiece 200 so that the workpiece 200 is located above the workbench 120. In this embodiment, the bottom surface of the workpiece 200 is provided with a positioning pin hole corresponding to the jacking head 132, and the jacking head 132 is clamped in the positioning pin hole to improve the jacking stability.

Preferably, the jacking mechanism 130 comprises at least one pair of jacking cylinders 131, a piston of each jacking cylinder 131 is connected with a coupler, and the coupler is connected with the jacking head 132. In the preferred embodiment, the workpiece 200 is lifted stably by ensuring that at least two lifting heads 132 lift the workpiece 200 at the same time.

In this embodiment, in order to adapt to processing of workpieces 200 with different sizes, a plurality of pairs of jacking cylinders 131 with different intervals are arranged on the worktable 120 so as to meet the use requirements of positioning pin holes with different intervals on the workpieces 200 with different sizes.

The pressing mechanism 140 comprises a pressing cylinder 141 and a pressing head 142 connected to the pressing cylinder 141, and the pressing head 142 abuts against the top end of the workpiece 200; the piston of the pressing cylinder 141 expands and contracts with the movement of the workpiece 200. In the present embodiment, the pressing mechanism 140 is provided for the purpose of: after the workpiece 200 is lifted to a proper height by the jacking mechanism 130, the pressing head 142 of the pressing mechanism 140 presses the top end of the workpiece 200 to firmly fix the workpiece 200 between the pressing head 142 and the jacking cylinder 131, so that the workpiece 200 can be positioned conveniently in the machining process of the workpiece 200, and the workpiece 200 cannot move to turn over laterally, so that the machining precision is improved. The expansion and contraction of the pressing cylinder 141 drives the pressing head 142 to move up and down.

Preferably, the pressing cylinders 141 are provided in a pair; the workbench 120 is provided with a first slide rail corresponding to the pressing cylinder 141, the first slide rail is provided with a pair of slidable connecting assemblies, and the pressing cylinder 141 is fixed on the pair of connecting assemblies respectively. In the preferred embodiment, the pair of pressing cylinders 141 is configured to slide on the first slide rail, and the distance between the pair of pressing cylinders 141 can be adjusted to satisfy the pressing function for different parts of workpieces 200 with different sizes.

In this embodiment, the installation component is fixed on the workbench 120, the pressing cylinder 141 is fixed on the installation component, the piston of the pressing cylinder 141 is connected to one end of the pressing head 142 through a coupling, the other end of the pressing head 142 is connected to the installation component through a pin shaft, and when the pressing head 142 needs to be lifted in the vertical direction, the pressing head 142 can be driven to ascend by adjusting the extension of the piston of the pressing cylinder 141, and similarly, the pressing head 142 descends when the piston of the pressing cylinder 141 contracts.

The positioning tool 100 further comprises a rotating mechanism 150, wherein the rotating mechanism 150 comprises a rotating motor 151, a driving gear 152 and a rotating support 153; the rotary motor 151 is disposed below the rack 110, an output shaft of the rotary motor 151 extends to the upper side of the rack 110 and then is connected to the driving gear 152, the driving gear 152 is engaged with the rotary support 153, and the worktable 120 is fixed above the rotary support 153.

In the present embodiment, the rotation motor 151 rotates to drive the driving gear 152 to rotate horizontally, and further drives the rotation support 153 engaged with the driving gear 152 to rotate horizontally, so as to achieve horizontal rotation of the table 120 and the workpiece 200 above the table 120. In this embodiment, rotating the workpiece 200 facilitates machining of different portions of the workpiece 200.

In the present embodiment, since it is difficult for the processing robot 300 to perform finishing processing on the workpiece 200 located on the side away from the processing robot 300, the workpiece 200 needs to be rotated by 180 °, and therefore the turning mechanism 150 is provided.

Preferably, a pair of positioning sleeves 161 is disposed on the surface of the frame 110 corresponding to two sides of the rotary support 153, a positioning cylinder 162 is disposed on the worktable 120, a first through hole is disposed on the worktable 120 corresponding to a piston of the positioning cylinder 162, a positioning rod 163 insertable into the positioning sleeve 161 is disposed below the worktable 120 corresponding to the first through hole, and a piston of the positioning cylinder 162 is connected to the positioning rod 163 after passing through the first through hole. In this embodiment, the rotary motor 151 drives the worktable 120 to rotate 180 ° each time, and after each rotation of the worktable 120, in order to fix the worktable 120, the positioning cylinder 162 drives the positioning rod 163 to move downward so that the positioning rod 163 is inserted into the positioning sleeve 161, so as to fix the worktable 120 on the frame 110.

As shown in fig. 4, the second embodiment of the present application further includes a processing robot 300 and a tool fixture 400 in the work area, the processing robot 300 is used for processing the workpiece 200 on the positioning fixture 100, tools 410 of different models are assembled on the tool fixture 400, and the processing robot 300 assembles the tool 410 for processing operation.

In this embodiment, the positioning tool 100 and the tool 400 are both disposed within the reach range of the processing robot 300. The tool kit 400 is used to store tools for finishing the workpiece 200.

In this embodiment, through rationally distributed location frock 100, processing robot 300 and cutter frock 400 in the workspace can realize the automatic, intelligent finishing to cylinder body, cylinder cap internal and external surface, improve the production efficiency of cylinder cap, cylinder body, greatly reduce the administrative cost and the operating cost of cylinder cap, cylinder body production.

Preferably, the square shape of the working area is more favorable for the layout of the positioning tool 100, the processing robot 300, and the tool 400.

In a preferred embodiment, as shown in fig. 5 and 6, the processing robot 300 includes: base 310, be equipped with robot body 320 on base 310, the tip of robot body 320 is equipped with processing subassembly 330, processing subassembly 330 includes mounting panel 331, mounting panel 331 passes through flange 332 to be fixed the tip of robot body 320, be fixed with servo motor 333 on the mounting panel 331, servo motor 333's output shaft has mechanical main shaft 334, cutter 410 detachably connects mechanical main shaft 334 keeps away from servo motor 333's tip.

In the preferred embodiment, the mounting plate 331 is connected to the sixth axis of the robot body 320 by a connecting flange 332. The robot body 320 drives the mounting plate 331 on the processing component 330 to move, and the servo motor 333 on the mounting plate 331 drives the mechanical spindle 334 to rotate, so that the cutter 410 on the mounting plate 331 rotates.

Preferably, in the above preferred embodiment, an infrared sensor for detecting the installation of the tool 410 is installed on the machine spindle 334. Whether the tool 410 is mounted on the machine spindle 334 and whether the tool 410 is mounted in a proper position are detected by the infrared sensor. The safety and automation degree of the finishing process are increased, and when the infrared sensor detects that the tool 410 is not connected to the mechanical spindle 334, the servo motor 333 stops working.

In a preferred embodiment, the tool assembly 400 includes a mounting frame, a tool holder mounted on the mounting frame for holding a finishing tool 410, a tool, and a tool holder, on which, for example, a bore brush, a high-density brush plate for finishing the outer surfaces of a cylinder head and a cylinder block, respectively, can be mounted. Preferably, the tool holder is further provided with a detection device for detecting whether a tool is arranged or not and a mistake-proofing mounting plate 331 for preventing the tool from being placed and misplaced.

The working flow of this embodiment is:

firstly, a ground rail robot places a workpiece 200 to be processed on a workbench 120 of a positioning tool 100, and a jacking cylinder 131 drives a jacking head 132, so that the jacking head 132 is inserted into a pin hole at the bottom of the workpiece 200 to perform fine positioning on the workpiece 200; after the jacking head 132 is in place, the pressing mechanism 140 works, the pressing mechanism 140 drives the pressing head 142 to press the top surface of the workpiece 200 through the pressing cylinder 141, and therefore the workpiece 200 to be machined is guaranteed not to be laterally turned over in the process of carrying out fine trimming on the inner surface and the outer surface of the workpiece 200.

After the workpiece 200 is precisely positioned, the robot body 320 on the base 310 drives the processing assembly 330 thereon to move above the tool fixture 400, the spindle 334 on the robot body 320 captures the corresponding finishing tool 410 on the tool fixture 400, and in this embodiment, the spindle 334 sucks the finishing tool 410 or the tool through the vacuum chuck.

The robot body 320 drives the finishing tool 410 or tool to finish the inner and outer surfaces of the workpiece 200, and the workpieces 200 with complex shapes are respectively finished by replacing finishing tools with different sizes.

After finishing one side of the workpiece 200 by the robot body 320, the turning mechanism 150 is operated, and the turning motor 151 drives the table 120 to rotate 180 °. When the workbench 120 rotates in place, the positioning cylinder 162 drives the positioning rod 163 to move downwards, and the positioning rod 163 is inserted into the positioning sleeve 161, thereby completing the rotation fine positioning. The robot body 320 carries the tool 410 to continue the finishing work of the surface of the workpiece 200.

After all the surfaces of the workpiece 200 to be processed are processed, the pressing mechanism 140 and the jacking mechanism 130 are released, and the workpiece 200 is transferred to the next station by the ground rail robot.

The principles and embodiments of the present application are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present application, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the invention.

Claims

1. The internal and external surface finishing system for the cylinder block and the cylinder cover of the engine is characterized by comprising a positioning tool (100) arranged in a working area, wherein the positioning tool (100) comprises a rack (110) and a workbench (120) arranged on the rack (110), and a jacking mechanism (130) and a pressing mechanism (140) are arranged on the workbench (120);

the jacking mechanism (130) comprises a jacking cylinder (131) and a jacking head (132) connected to the jacking cylinder (131), wherein the jacking head (132) abuts against the bottom surface of a workpiece (200) so that the workpiece (200) is positioned above the workbench (120);

the pressing mechanism (140) comprises a pressing air cylinder (141) and a pressing head (142) connected to the pressing air cylinder (141), and the pressing head (142) abuts against the top end of the workpiece (200); the piston of the pressing cylinder (141) extends and contracts along with the movement of the workpiece (200);

the positioning tool (100) further comprises a rotating mechanism (150), and the rotating mechanism (150) comprises a rotating motor (151), a driving gear (152) and a rotating support (153); the rotary motor (151) is arranged below the rack (110), an output shaft of the rotary motor (151) extends to the upper portion of the rack (110) and then is connected onto the driving gear (152), the driving gear (152) is meshed with the rotary support (153) and is connected with the rotary support (153), and the workbench (120) is fixed above the rotary support (153).

2. The internal and external surface finishing system for the engine cylinder block and the cylinder cover is characterized in that a machining robot (300) and a cutter tool (400) are further included in the working area, the machining robot (300) is used for machining a workpiece (200) on the positioning tool (100), different types of cutters (410) are assembled on the cutter tool (400), and the machining robot (300) is used for assembling the cutters (410) for machining operation.

3. The engine block, cylinder head internal-external surface finishing system of claim 2, characterized in that said machining robot (300) comprises: base (310), be equipped with robot body (320) on base (310), the tip of robot body (320) is equipped with processing subassembly (330), processing subassembly (330) is including mounting panel (331), mounting panel (331) are fixed through flange (332) the tip of robot body (320), be fixed with servo motor (333) on mounting panel (331), the output shaft of servo motor (333) has mechanical main shaft (334), cutter (410) detachably connect and be in mechanical main shaft (334) are kept away from the tip of servo motor (333).

4. The engine block, cylinder head internal-external surface finishing system according to claim 1, characterized in that said pressing cylinders (141) are provided in a pair; the workbench (120) is provided with a first slide rail corresponding to the pressing cylinder (141), the first slide rail is provided with a pair of sliding connection assemblies, and the pressing cylinder (141) is fixed on the pair of connection assemblies respectively.

5. The engine block, cylinder head internal-external surface finishing system according to claim 1, characterized in that said jacking mechanism (130) comprises at least one pair of said jacking cylinders (131), a piston of each said jacking cylinder (131) being connected with a coupling, said coupling being connected with said jacking head (132).

6. The internal and external surface finishing system for the engine cylinder block and the cylinder cover as claimed in claim 1, wherein a pair of positioning sleeves (161) is arranged on the surface of the frame (110) corresponding to two sides of the rotary support (153), a positioning cylinder (162) is arranged on the workbench (120), a first through hole is arranged on the workbench (120) corresponding to a piston of the positioning cylinder (162), a positioning rod (163) capable of being inserted into the positioning sleeve (161) is arranged below the workbench (120) corresponding to the first through hole, and a piston of the positioning cylinder (162) passes through the first through hole and then is connected to the positioning rod (163).

7. The engine block, cylinder head internal and external surface finishing system of claim 3, characterized in that said machine spindle (334) has mounted thereon an infrared sensor for detecting the mounting of said tool (410).